From the MathML prime I tried this example from page 74: <math xmlns="http://www.w3c.org/mathml" version="2.0"> <semantics> <apply> <eq/> <ci> e </ci> <apply> <times/> <ci> m </ci> <apply> <power/> <ci> c </ci> <cn> 22 </cn> </apply> </apply> </apply> <annotation encoding="tex"> e = m c^2 </annotation> </semantics> </math>

It typesets nothing, same for encoding "context", same for "TeX", same for "ConTeXt". Anything else takes the mathml and gives the result. Why is the <semantics><annotation encoding="tex"> not working? Hans van der Meer